Plantguy Posted June 30, 2015 Share Posted June 30, 2015 Hey Roger, darn it, my error. my errant wishful thinking and weak humor...oh, sometimes it takes me into the wrong ditch....thanks for extracting me. Continued hunting success! Regards, Chris Link to comment Share on other sites More sharing options...
Manticocerasman Posted June 30, 2015 Share Posted June 30, 2015 Roger, The Laevaptychus obliquus would have been from a huge ammonite. Any idea from what kind of ammonite it comes? Kevin growing old is mandatory but growing up is optional. Link to comment Share on other sites More sharing options...
Manticocerasman Posted June 30, 2015 Share Posted June 30, 2015 Now that would be an even greater sensation finding an upper cretaceous Mosasaurier in an upper Jurassic sponge reef complex But maybe there's at least an Ichthyosaurier or a Plesiosaurier lurking in there somewhere... or maybe a Liopleurodon growing old is mandatory but growing up is optional. Link to comment Share on other sites More sharing options...
Ludwigia Posted July 4, 2015 Author Share Posted July 4, 2015 Roger, The Laevaptychus obliquus would have been from a huge ammonite. Any idea from what kind of ammonite it comes? Kevin Aspidoceras. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted August 27, 2015 Author Share Posted August 27, 2015 (edited) I finally had another day at the ditch this week and managed to dig out quite a bit within a few hours. The nice thing about these fossils is that they're relatively easy to prepare, so I've already got a good number finished. I won't give the names this time, since I'll just be repeating myself here in most cases. I'll make an exception with the following one, a Pachypictonia sp. which would have a circumference of 18cm. if it was complete. There was unfortunately no way to find the rest of it, since it was long-gone with the erosion and subsequent breakdown of the outer cliff wall. These ones are pretty rare, and one of this size and quality (apart from the failing part) is even more difficult to find, so I'm thinking seriously about filling in the gap with modelling plaster. By the way, Victor Schlampp, our German Upper Jurassic ammonite expert, recently told me that the giant Aptychus is probably from a Pseudhimalayites sp. ammonite, which belongs to the family of the Aspidoceratidae. Edited September 14, 2015 by Ludwigia 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
JimB88 Posted August 29, 2015 Share Posted August 29, 2015 is the bottom right a gastropod? Cool finds Roger! Link to comment Share on other sites More sharing options...
Ludwigia Posted August 29, 2015 Author Share Posted August 29, 2015 is the bottom right a gastropod? Cool finds Roger! Yes it is, Jim. I think it's a Bathrotomaria, but it's hard to say for sure, since it's just a mold with no sculpture. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
masonboro37 Posted August 30, 2015 Share Posted August 30, 2015 Beautiful! Process of identification "mistakes create wisdom". Link to comment Share on other sites More sharing options...
Ludwigia Posted August 31, 2015 Author Share Posted August 31, 2015 Beautiful! Thanks Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted August 31, 2015 Author Share Posted August 31, 2015 It took a while to get this one done, since there was a bit of repair work involved, but it was worth it. A large and almost complete Garnierisphinctes sp. with a circumference of 19cm. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
JimB88 Posted September 5, 2015 Share Posted September 5, 2015 wow,,talk about some complex sutures! Awesome specimen..and great prep job! Link to comment Share on other sites More sharing options...
Ludwigia Posted September 5, 2015 Author Share Posted September 5, 2015 (edited) Thanks, Jim. Aren't they great? They come out partially 3-dimensional when you use the air abrader on them. You can also notice the part that I repaired at hand of the missing sutures in the bluish area. I'm not artistic enough to copy them and the color isn't quite right. Edited September 5, 2015 by Ludwigia Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted September 14, 2015 Author Share Posted September 14, 2015 I got that partial Pachypictonia finished today Also posted a short report: http://www.thefossilforum.com/index.php?/topic/57599-a-bit-of-modelling/ Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted September 15, 2015 Author Share Posted September 15, 2015 Here are a few more from yesterday's trip. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
JimB88 Posted September 16, 2015 Share Posted September 16, 2015 awesome finds Roger! Whats the white one in the upper right corner? Link to comment Share on other sites More sharing options...
Ludwigia Posted September 16, 2015 Author Share Posted September 16, 2015 Thanks, Jim. That's a nicely preserved Streblites tenuilobatus. As is mostly the case, just the phragmocone. I'm hoping for one with a complete living chamber one of these days . Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Shamalama Posted September 17, 2015 Share Posted September 17, 2015 You say phragmocone and I think Belemnites because their living chamber was actually cone shaped. Never thought it would be used for ammonites as well. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Ludwigia Posted September 17, 2015 Author Share Posted September 17, 2015 Yup. The term applies to all cephalopods, whether straight or spiral. I think it was originally applied to the straight ones, hence the "cone". If you unrolled the spiral, you would also have a long cone shape. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Plantguy Posted September 20, 2015 Share Posted September 20, 2015 Hey Roger, very nice to see more great material. Continued hunting success!! Regards, Chris Link to comment Share on other sites More sharing options...
Ludwigia Posted September 20, 2015 Author Share Posted September 20, 2015 Thanks, Chris Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
DE&i Posted September 20, 2015 Share Posted September 20, 2015 Great finds Roger From Elliot Regards.....D&E&i The only certainty with fossil hunting is the uncertainty. https://lnk.bio/Darren.Withers Link to comment Share on other sites More sharing options...
Ludwigia Posted September 20, 2015 Author Share Posted September 20, 2015 Thank you Elliot. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Nandomas Posted September 20, 2015 Share Posted September 20, 2015 great finds, Roger I am not an ammonite guy, but your fossils are really interesting. Erosion... will be my epitaph! http://www.paleonature.org/ https://fossilnews.org/ Link to comment Share on other sites More sharing options...
Ludwigia Posted September 20, 2015 Author Share Posted September 20, 2015 Thanks very much Nando. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted October 15, 2015 Author Share Posted October 15, 2015 I had the sudden urge to do something different yesterday so although it was already the middle of the afternoon, I headed off to the ditch and spent a couple of hours digging about. It didn't take long before it started to get dark, but I came away nevertheless with a couple of nice little keepers. Aspidoceras cf. acanthicum 6.5cm. Rasenia (Eurasenia) cf. trimera 3cm. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
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